JPH0745966B2 - Control device for automatic hot water bath equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a control device for an automatic hot water supply bath device.

Configuration of Conventional Example and Problems Therefor, for example, in a conventional method of reheating after hot water is supplied to a bathtub by a water heater, valve operation in a bathroom, confirmation of full water,
It was inconvenient because it was necessary to confirm the hot water supply temperature and boiling. Further, if the above confirmation is forgotten, there is a high possibility that water and energy will be lost due to overflow of hot water, excessive boiling, and the like.

An object of the present invention is to solve the above-mentioned conventional drawbacks by opening and closing a valve by operating an operating portion, closing the valve by detecting a water level,
A device that improves usability by closing the valve with the passage of time, reheating when the hot water temperature is low, stopping reheating when the bath water temperature is detected, and stopping reheating when the water level drops to improve usability and a comfortable bathtub I will provide a.

To achieve the above object, the control device for the automatic hot-water supply bathtub system of the present invention opens the valve by the operation of the operating portion to supply hot water to the bathtub, and when the water level of the bathtub reaches the set water level, the valve is opened. When it is closed and hot water supply is stopped, reheating is started at the same time, and when the hot water temperature of the bath reaches the set temperature, reheating is stopped. Further, it is possible to fully automatically supply hot water to the bathtub and reheat it by only inputting the operation of the operation unit, which has the effect of excellent usability and usability.

Description of Embodiments An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a bathtub, 2 is a bath kettle, 3 is a water heater,
4 is a pipe connecting the bathtub 1 and the water heater 3, 5 is a valve for supplying hot water to the bathtub 1, 6 is a water level sensor for detecting the water level of the bathtub 1, 7 is hot water for the bathwater entering the bathtub 2 from the bathtub 1. A temperature sensor for detecting the temperature, 8 an operation unit for operating automatic operation, 9 a control device as a control means, 10 a hot water temperature detection circuit for processing a signal from the temperature sensor 7, 11 a bathtub 2
Bath controller control circuit for operating the, water level detection circuit 12 processes the signal from the water level sensor 7, 13 valve drive circuit for driving the valve 5, 14 processes the signal from each circuit, each circuit A command generation circuit for giving a command, and 15 is a timer circuit. The operation of the above configuration will be described below.

When the automatic operation operation is performed by the operation unit 8, an automatic operation signal is sent to the water heater 3 and the command generation circuit 14. Command generation circuit
When an automatic operation signal is input to 14, the water level detection circuit 12 first operates, and the water level sensor 6 confirms whether the bath water level has reached the set water level. If it has not reached the set water level, a signal is sent to the valve drive circuit 13. To supply hot water to the bathtub 1 from the water heater 3 through the pipe 4 by opening the valve 5. When the water level in the bathtub rises with the passage of time and the water level detection circuit 12 confirms that the water level sensor 6 has reached the set water level, a signal is sent to the command generation circuit 14 and the valve drive circuit 13 closes the valve 5. Then, hot water supply from the water heater 3 is stopped. Further, the timer circuit 15 starts time counting at the same time when the automatic operation signal is sent to the command generation circuit 14, and the water level detection circuit 12 must detect that the set water level has been reached by the elapse of a certain time T. The command generation circuit 14 stops the system, and if detected, the timer circuit 15 is reset. At the same time when the water level of the bathtub reaches the set water level and the valve 5 is closed, a command is sent to the bathtub control circuit 11 and the bathtub 2 starts reheating. (When the bathtub water level reaches the set water level when the automatic operation signal is input to the command generation circuit 14, reheating is started from that point.) When the bath kettle 2 is reheated, the hot water temperature in the bathtub is increased. It is sent to the hot water temperature detection circuit 10 by the temperature sensor 7 and compared with the set temperature. When the hot water temperature in the bath reaches the set temperature, a signal is sent to the command generation circuit, and the command generation circuit stops the system.
Further, when the water level drops during reheating and reaches (set water level-α), a signal is sent from the water level detection circuit 12 to the command generation circuit 14 to stop the system. As described above, according to the present embodiment, hot water can be supplied to the bathtub up to the set water level, and reheating to the set temperature can be fully automatically performed only by operating the operation unit, and even if there is a water leak, there is no loss of hot water. The effect is small and the danger of emptying can be eliminated. A simple flowchart is shown in FIG.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

A bathtub water level detection unit and a bathtub hot water temperature detection unit are provided outside the bathtub, and the bathtub hot water temperature detection unit detects the hot water temperature of the bathtub water entering the bathtub from the bathtub, thereby Quickly detects the drop in the hot water temperature and quickly heats the cooled hot water to the set temperature, and eliminates the irregularities on the wall surface of the bath tub by mounting it inside the bath tub to prevent the sensation of foreign objects from the wall when bathing. As a result, the bath water can be automatically stored at the set water level and the set hot water temperature by an input instruction to the automatic driving operation unit while maintaining a good usability as a domestic bathtub.

[Brief description of drawings]

FIG. 1 is a block diagram of a control device for an automatic hot water supply bath apparatus which is an embodiment of the present invention, and FIG. 2 is a flow chart. 1 ... tub, 2 ... bath kettle, 3 ... water heater, 5 ... valve, 6 ... water level sensor, 7 ... temperature sensor, 8 ...
Operation unit, 9 ... Control device.

Claims (1)

[Claims] 1. A water heater, a pipe connected to a portion of the bathtub lower than the stored water level to supply hot water from the water heater to the bathtub, a bath kettle for circulating and heating the bath water, and a hot water supply to the bathtub provided in the pipe. A valve for controlling and a bathtub water level detector for detecting the stored water level, a bathtub hot water temperature detector provided in the bathtub for detecting the temperature of the bathwater entering the bathtub from the bathtub, the stored water level and boiling of the bath water An automatic operation operation unit that sets the temperature of raised water and also inputs and stores water in the bathtub, and instructs the water heater and the valve by an input signal from the automatic operation operation unit to store water at the set water level in the bathtub, After that, the control device for the automatic hot-water supply bath device is provided with a control means for instructing the bath kettle to circulate and heat to the set hot water temperature by a detection signal from the hot water bath temperature detection unit.